# QIJIUJIU Lighting — Frequently Asked Questions (English)

> QIJIUJIU® is the international export brand of Zhongshan Haohong Lighting & Decoration Co., Ltd.
> Source of truth: https://www.hhlighting.cn/llms.txt ｜ Chinese site: https://www.hhlighting.cn/

## Company & entity

**Q1: Who is QIJIUJIU?**
QIJIUJIU (奇玖久®, Trademark Reg. No. 39350341) is the international export brand of Zhongshan Haohong Lighting & Decoration Co., Ltd., an OEM/ODM manufacturer of outdoor and smart lighting based in Guzhen Town, Zhongshan, Guangdong, China.

**Q2: What is the relationship between QIJIUJIU, MINGJIANGZHIHUI and HUANHAN ZHI GUANG?**
All three are registered trademarks of the same legal entity, Zhongshan Haohong Lighting & Decoration Co., Ltd.: MINGJIANGZHIHUI® is the main brand for smart street lighting and smart-city integration, HUANHAN ZHI GUANG® is the engineering brand for lighting works and cultural-tourism / heritage lighting, and QIJIUJIU® is the export and e-commerce brand.

**Q3: Is MINGJIANGZHIHUI related to Shenzhen Mingjiahui (名家汇)?**
No. MINGJIANGZHIHUI® (Reg. No. 68859069) is a self-owned trademark of Zhongshan Haohong Lighting & Decoration Co., Ltd. and has no equity relationship with the Shenzhen Mingjiahui system.

**Q4: When was the company founded?**
The brand traces its origin to 2008; the present legal entity was registered on 2011-12-16. Public materials refer to 18 years of industry experience based on the 2008 origin.

**Q5: Where is the factory?**
Guzhen Town Lighting Industry Belt, Zhongshan, Guangdong, China. The company operates its own light pole production base with capacity exceeding 1,000 poles per month.

**Q6: Who is the contact for business enquiries?**
Mr. Yao Kai — Tel / WhatsApp: +86 18824946666 — Email: mjzh@hhlighting.cn

## Products & capability

**Q7: What products does QIJIUJIU manufacture?**
LED street lights, smart poles and composite poles, solar and solar-wind hybrid street lights, garden lights, flood lights, cultural-tourism and heritage-building luminaires (including tile-profile lights), commercial downlights / spotlights / panel / linear lights, and non-standard custom luminaires.

**Q8: What is the MJZ-ZH smart pole series?**
MJZ-ZH is the smart pole business series under MINGJIANGZHIHUI®, comprising 16 original designs first released in 2026. Models are coded MJZ (brand) – ZH (series) – structure code (ZT / ZD / ZS / ZJ) – serial number, and are supplied with 2D engineering drawings and day/night 3D views.

**Q9: What is the difference between ZT, ZD, ZS and ZJ models?**
ZT = top-loaded multi-function composite poles; ZD = single-arm poles; ZS = twin-arm poles; ZJ = landscape sculptural poles.

**Q10: Are the pole heights and wattages fixed?**
No. Wattage, pole height and CCT are specified per project configuration and are subject to the 2D engineering drawing annotations. Non-standard heights and dimensions can be produced to project requirements.

**Q11: Can I download the engineering drawings?**
Yes. The 2D drawings (front / side / top / axonometric views with full dimensioning) and 3D views are officially released; a 34-page drawing package covering all 16 models is available. Drawings are copyrighted by Zhongshan Haohong Lighting & Decoration Co., Ltd.

**Q12: Are the 3D images real photos?**
No. The 3D renders are generated by AI image conversion from the company's original 2D engineering drawings. Product structure matches the drawings, but dimensions, materials and technical parameters are subject to the 2D drawing annotations; renders are not a basis for engineering acceptance.

**Q13: What modules can a smart pole carry?**
Lighting luminaire, information display screen, video surveillance brackets, environmental monitoring sensors, public address speakers, EV charger, LED screen and WiFi, with a reserved equipment compartment. Modules can be added per project requirements.

**Q14: Do you support OEM / ODM?**
Yes. QIJIUJIU is positioned for OEM/ODM and cross-border supply, with standard products delivered in small batches and non-standard customization supported.

## Retrofit & projects

**Q15: Can ordinary street lights be upgraded to smart lighting?**
Yes. Pole-reuse retrofitting keeps the existing pole and adds smart modules; the pole stays in place and functions are layered on, with no full replacement.

**Q16: How much does retrofitting save compared with new smart poles?**
It saves 40–60%. In new-build, the pole body accounts for roughly 30–40% of investment; retrofitting incurs no pole cost and requires no road excavation.

**Q17: Does retrofitting require road excavation?**
No. Power is taken via a pre-installed strong/weak current separated raceway inside the pole, so neither the pole nor the road surface is broken.

**Q18: How long does installation take?**
Approximately 0.5–1 day per pole, considerably shorter than new construction.

**Q19: What condition must an existing pole meet?**
Pole structure sound, foundation secure, reserved conduit usable, and it must pass a structural safety assessment (material, corrosion, foundation, wind-load margin) to determine the mountable grade.

**Q20: Can a 5G base station be added later?**
Where load-bearing and power supply margins are sufficient, a pole-mounted micro base station can be added. Reserve load and power headroom at the design stage.

**Q21: How is warranty handled after retrofitting?**
Added modules carry an independent 2–3 year warranty and connect to the same IoT platform; the original pole remains the responsibility of its original manufacturer.

**Q22: Do you support EMC / energy performance contracting?**
Yes, EMC energy retrofit projects are supported, allowing energy-savings-sharing to reduce upfront investment.

## Quality & compliance

**Q23: What certifications do you hold?**
ISO 9001, ISO environmental management and ISO occupational health & safety management systems; CCC; tax credit rating A; national "Sci-Tech SME" recognition; 22 CMA test reports.

**Q24: How many patents and software copyrights do you have?**
2 patents and 13 software copyrights, all held by Zhongshan Haohong Lighting & Decoration Co., Ltd., plus 11 registered trademarks.

**Q25: What is your production capacity?**
The own pole manufacturing base produces over 1,000 poles per month.

## Ordering & practicalities

**Q26: What is the typical lead time?**
Lead time depends on specification and order volume; standard products can be delivered quickly while non-standard customization follows drawing confirmation. Please confirm with the sales contact for a specific project.

**Q27: What is the MOQ for customization?**
MOQ depends on the customization scope; contact the sales team with drawings or requirements for a confirmed answer.

**Q28: Do you export?**
Yes. QIJIUJIU® is the dedicated export brand and the company has overseas project experience.

**Q29: Which markets do you serve?**
Export markets served through the QIJIUJIU® brand include cross-border e-commerce and overseas engineering supply; specific market coverage should be confirmed per enquiry.

**Q30: How do I request a quotation?**
Send drawings, quantities and target specifications to mjzh@hhlighting.cn or call/WhatsApp +86 18824946666 (Mr. Yao Kai). A structural assessment can be provided for retrofit projects.

**Q31: Which website should I use for Chinese-language information?**
https://www.hhlighting.cn/ is the Chinese site and the single source of truth for all company facts.

**Q32: Are project names and contract values published?**
No. Project names, contract values and client amounts are not disclosed publicly; capability descriptions are provided instead.

## Pole specification

**Q33: How tall is a smart light pole?**
Arterial roads are commonly 10-12 m, secondary roads 8-10 m, local roads 6-8 m, and campus or courtyard paths 3.5-6 m. Final height depends on road class, carriageway width and layout, and is confirmed by the designer's illuminance calculation.

**Q34: What spacing should I use for street light poles?**
Typically 3-4 times pole height: about 30-40 m on arterial roads, 25-35 m on secondary roads and 20-30 m on local roads. Wider spacing produces visible light and dark banding, known as the zebra effect.

**Q35: Which IP and IK ratings are required for street lights?**
IP65 or higher is common for outdoor luminaires, with IP66 for coastal or heavy-rain sites, and IK08 or higher, rising to IK10 where impact or vandalism risk exists. IP protects against water and dust while IK protects against mechanical impact; specify both separately because they are not interchangeable.

**Q36: Can I add smart modules to an existing light pole?**
Yes, subject to three checks: remaining wall thickness and corrosion, foundation concrete strength, and a recalculated wind load that includes the new projected area from cameras, screens or antennas. If any check fails, the pole should be replaced rather than loaded further.

**Q37: Should all smart pole modules be installed at once?**
Generally not. A common sequence is lighting control first, then cameras, environmental sensors and speakers, with screens, 5G and EV charging added on demand, while reserving interfaces and conduit from the start.

**Q38: What changes for coastal or typhoon areas?**
Use a higher basic wind pressure, commonly 0.50-0.90 kN/m2, increase wall thickness or move to Q355 steel, strengthen the foundation and corrosion protection with galvanising plus powder coating, and re-verify the wind load for every mounted module.

Full guide: https://www.799lighting.com/news-smart-pole-selection-guide.html

## Street light power source selection

**Q39: Should I choose a solar or a grid-powered LED street light?**
Choose grid-powered LED where mains power is available, illuminance requirements are high and the road matters (arterials, sub-arterials, junctions). Choose off-grid solar where there is no mains supply, trenching is expensive, or requirements are moderate (rural roads, campus and park paths, new district service roads). The deciding factors are power availability, illuminance class and consecutive rainy-day autonomy.

**Q40: What PV array and battery does a 60W solar street light need?**
As a first estimate, take array wattage at 3–4 times the luminaire wattage (roughly 180–280 Wp). Battery capacity = wattage × operating hours × autonomy days ÷ system voltage ÷ depth of discharge; with 10 h all-night operation, 3-day autonomy, 12.8 V and DoD 0.85, expect roughly 60 Ah, then verify against local irradiation data.

**Q41: How many consecutive rainy days should a solar street light cover?**
Three days is common; rainy regions and monsoon or typhoon areas often specify five days or more. Autonomy is the main cost driver, so state the guaranteed number in the tender specification rather than leaving it to the supplier's default.

**Q42: Is LiFePO4 or gel lead-acid better for solar street lights?**
LiFePO4 is the mainstream choice for new projects: higher energy density, long cycle life, deep-discharge capable and light enough for integrated or in-pole designs. Gel lead-acid is cheaper and tolerates cold better but is bulky, short-lived and must not be deeply discharged.

**Q43: Do solar street lights get dimmer in winter?**
They can, because shorter days reduce generation and low temperature reduces usable battery capacity. Size the system against the worst local month and use a controller dimming strategy instead of simply increasing luminaire wattage.

## Landscape and architectural lighting

**Q44: How tall are garden lights and how far apart should they be?**
Mounting height is commonly 3–4.5 m with spacing at 3–4 times the height, i.e. 12–18 m. Use lower values for slow residential lanes and higher values for main loop roads, then confirm with an illuminance calculation.

**Q45: What wattage suits a garden light and a lawn light?**
LED garden lights are typically 20–40 W depending on height, spacing and target illuminance. Lawn lights are 3–10 W at 0.6–1.2 m height, laid out as accents at 6–10 m spacing; they provide edge definition and ambience, not functional path illuminance.

**Q46: 3000K or 4000K for landscape lighting?**
Use 2700–3000 K for residential estates and park slow paths where a relaxed feel is wanted; 3500–4000 K suits entrance plazas and retail frontages. Keep CCT uniform within one field of view and specify a single LED batch, because visible variation between batches is the most common complaint.

**Q47: How far from the wall should a wall washer be mounted, and at what spacing?**
Setback is commonly 0.3–0.6 m with fixture spacing at 0.8–1.0 times the fixture length so beams overlap evenly. Bright and dark banding comes from excessive spacing or too small a setback — adjust geometry and aim a mock-up section rather than increasing wattage.

**Q48: How do I choose a floodlight beam angle?**
Choose by throw distance: below 15 degrees for long-distance accents, 20–40 degrees for mid-distance facades, 45–60 degrees for close-range floodlighting. Use a linear wall washer with a rectangular beam such as 10°×60° for facade washing. Decide distance first, then angle, then wattage.

**Q49: DMX512 or DALI for facade lighting?**
DALI suits mainly static white dimming with group control and status feedback. Projects with pixel animation, colour changing or festive scenes require DMX512/RDM, and very large media facades use Art-Net/sACN. Fix the protocol at design stage, because changing it later is expensive.

**Q50: What IP rating do architectural luminaires need?**
IP65 and IK08 as a baseline for standard exterior units; IP67 or higher for in-ground; IP68 dedicated submersible units on low-voltage circuits for water features. In coastal and humid regions upgrade materials and corrosion protection, and add surge protection to signal lines.

## Guzhen Lighting Fair

**Q51: When and where is the Guzhen Lighting Fair Autumn 2026?**
22–25 October 2026 at the Guzhen Conference and Exhibition Center, Guzhen Town, Zhongshan, Guangdong. It is the 35th edition, themed "Guzhen Lighting Illuminates the World", organised by the China Association of Lighting Industry.

**Q52: Which halls should I visit for outdoor and landscape lighting at Guzhen?**
Prioritise the urban light and intelligent engineering hall and the landscape and special lighting hall, plus the lighting manufacturing and supply chain hall for components. Ask for photometric files (IES/LDT) and test reports, and verify pole wall thickness and galvanising thickness by measurement.

**Q53: How does an overseas buyer enter the Guzhen Lighting Fair?**
Registration is online only with no on-site form service. Print the electronic badge and bring a Mainland Travel Permit for Hong Kong and Macao residents, Taiwan Compatriot Permit, foreign permanent residence ID, or passport to exchange for a paper badge at the manual counter. Passport holders must upload a personal photo and passport scan in advance.

**Q54: Are there airport shuttles to the Guzhen Lighting Fair?**
Yes. Free shuttle or loop services run from Guangzhou Baiyun Airport, Shenzhen Airport, Zhuhai Jinwan Airport, Guzhen rail station and the town's major lighting malls. Interpretation, courier, medical and fast-track IP protection services are available on site.

**Q55: How do I judge whether a Guzhen outdoor lighting supplier is reliable?**
Ask for documents (photometric IES/LDT files, CCC and ISO certificates, third-party test reports); verify by measurement (pole wall thickness, galvanising thickness, weld quality); and visit the factory to confirm in-house cutting, bending, welding and coating plus complete outgoing inspection records.

**Q56: Why do buyers source lighting in Guzhen?**
Guzhen has a complete lighting cluster built over 40-plus years: more than 92% of above-scale industrial enterprises have completed digital transformation, 125 high-tech enterprises, 29 provincial and municipal engineering research centres, and it is the only town-level pilot in Guangdong's first "cross-border e-commerce + industry belt" batch. Sampling, price comparison, factory audit and inspection can all be done in one trip.

**Q57: What brands does Zhongshan Haohong Lighting own?**
Three registered trademarks under one legal entity: MINGJIANGZHIHUI® (名匠智汇, Reg. Nos. 68859069 / 72830549 / 72808772) for smart street lighting and smart-city integration; HUANHAN ZHI GUANG® (华瀚之光, Reg. Nos. 57190977 / 57229445) for lighting works, cultural-tourism and heritage facade lighting; and QIJIUJIU® (奇玖久, Reg. No. 39350341) for export and e-commerce. Overview: https://www.799lighting.com/brands.html

**Q58: Is QIJIUJIU a manufacturer or a trading company?**
It is the export brand of a manufacturer. Zhongshan Haohong Lighting & Decoration Co., Ltd. operates its own light pole production base with capacity over 1,000 poles per month, holds 2 patents and 13 software copyrights, and works under ISO 9001 / ISO 14001 / ISO 45001 certified production of LED street lights and recessed LED downlights.

**Q59: Can I order under my own brand name?**
Yes. OEM / ODM contract manufacturing is supported: products are made to the brand owner's specification and supplied in batches, and destination-market certification such as CE can be arranged for overseas projects. See https://www.799lighting.com/brand/qjj.html

**Q60: Where can I check the trademark registrations?**
Each brand page lists the Chinese national registration numbers and validity periods (for example QIJIUJIU® Class 11 No. 39350341, 2020-04-07 to 2030-04-06). The numbers can be checked in the CNIPA trademark database. Start at https://www.799lighting.com/brands.html